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3 years ago

Can someone help me with this question please.

Mathematics

1 answer:

Daniel [21]3 years ago

7 0

For part A. 0.85

For part b. 11.9

Explain

Cost of each track in album A= total cost downloading album a/ total number of track

The problem give us a has 11 trackers and the total cost of download is 9.35 pounds

9.35/11

= 0.85

Now we are given each track cost in album b cost the same as track on A

Cost of each track in album B is 0.85

Now we are given if Jane download album B , B will be 14 tracks

Total cost of downloading is album B= number of tracks in album Bx cost of each track in album B

14x0.85 pound

= 11.9

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lakkis [162]

Answer:

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3 years ago

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2 years ago

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kirill [66]

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what you do from here is isolate all the y terms on one side and all the X terms on the other
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just divided G(y) to both sides and multiply dx to both sides

then integrate both sides
$\int \frac{1}{G(y)} dy = \int F(x) dx

$

once you integrate, you will have a constant. use the initial value condition to solve for the constant, then try to isolate x or y if the question asks for it

In your problem,
$G(y) = \sqrt{1-y^2}

F(x) = 2x$

so all you need to integrate is
$\int \frac{1}{\sqrt{1-y^2}} dy = \int 2x dx$

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